Annotation of mandoc/man_term.c, Revision 1.112
1.112 ! kristaps 1: /* $Id: man_term.c,v 1.111 2011/06/18 17:58:48 kristaps Exp $ */
1.1 kristaps 2: /*
1.98 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.94 schwarze 4: * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.8 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.55 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.28 kristaps 22: #include <sys/types.h>
23:
1.1 kristaps 24: #include <assert.h>
1.18 kristaps 25: #include <ctype.h>
1.1 kristaps 26: #include <stdio.h>
27: #include <stdlib.h>
28: #include <string.h>
29:
1.71 kristaps 30: #include "mandoc.h"
1.40 kristaps 31: #include "out.h"
1.36 kristaps 32: #include "man.h"
1.1 kristaps 33: #include "term.h"
1.36 kristaps 34: #include "main.h"
1.1 kristaps 35:
1.18 kristaps 36: #define INDENT 7
37: #define HALFINDENT 3
38:
1.44 kristaps 39: /* FIXME: have PD set the default vspace width. */
40:
1.24 kristaps 41: struct mtermp {
42: int fl;
1.19 kristaps 43: #define MANT_LITERAL (1 << 0)
1.26 kristaps 44: /*
45: * Default amount to indent the left margin after leading text
46: * has been printed (e.g., `HP' left-indent, `TP' and `IP' body
47: * indent). This needs to be saved because `HP' and so on, if
48: * not having a specified value, must default.
49: *
50: * Note that this is the indentation AFTER the left offset, so
51: * the total offset is usually offset + lmargin.
52: */
53: size_t lmargin;
54: /*
55: * The default offset, i.e., the amount between any text and the
56: * page boundary.
57: */
58: size_t offset;
1.24 kristaps 59: };
1.19 kristaps 60:
1.1 kristaps 61: #define DECL_ARGS struct termp *p, \
1.24 kristaps 62: struct mtermp *mt, \
1.1 kristaps 63: const struct man_node *n, \
64: const struct man_meta *m
65:
66: struct termact {
67: int (*pre)(DECL_ARGS);
68: void (*post)(DECL_ARGS);
1.56 kristaps 69: int flags;
70: #define MAN_NOTEXT (1 << 0) /* Never has text children. */
1.1 kristaps 71: };
72:
1.77 kristaps 73: static int a2width(const struct termp *, const char *);
74: static size_t a2height(const struct termp *, const char *);
1.39 kristaps 75:
1.52 kristaps 76: static void print_man_nodelist(DECL_ARGS);
1.45 kristaps 77: static void print_man_node(DECL_ARGS);
1.74 kristaps 78: static void print_man_head(struct termp *, const void *);
1.73 kristaps 79: static void print_man_foot(struct termp *, const void *);
1.39 kristaps 80: static void print_bvspace(struct termp *,
81: const struct man_node *);
82:
1.88 kristaps 83: static int pre_alternate(DECL_ARGS);
1.1 kristaps 84: static int pre_B(DECL_ARGS);
1.19 kristaps 85: static int pre_HP(DECL_ARGS);
1.1 kristaps 86: static int pre_I(DECL_ARGS);
1.4 kristaps 87: static int pre_IP(DECL_ARGS);
1.1 kristaps 88: static int pre_PP(DECL_ARGS);
1.26 kristaps 89: static int pre_RS(DECL_ARGS);
1.1 kristaps 90: static int pre_SH(DECL_ARGS);
91: static int pre_SS(DECL_ARGS);
92: static int pre_TP(DECL_ARGS);
1.29 kristaps 93: static int pre_ign(DECL_ARGS);
1.83 kristaps 94: static int pre_in(DECL_ARGS);
1.84 kristaps 95: static int pre_literal(DECL_ARGS);
1.19 kristaps 96: static int pre_sp(DECL_ARGS);
1.89 kristaps 97: static int pre_ft(DECL_ARGS);
1.1 kristaps 98:
1.22 kristaps 99: static void post_IP(DECL_ARGS);
1.20 kristaps 100: static void post_HP(DECL_ARGS);
1.26 kristaps 101: static void post_RS(DECL_ARGS);
1.1 kristaps 102: static void post_SH(DECL_ARGS);
103: static void post_SS(DECL_ARGS);
1.21 kristaps 104: static void post_TP(DECL_ARGS);
1.1 kristaps 105:
1.32 kristaps 106: static const struct termact termacts[MAN_MAX] = {
1.82 kristaps 107: { pre_sp, NULL, MAN_NOTEXT }, /* br */
1.56 kristaps 108: { NULL, NULL, 0 }, /* TH */
109: { pre_SH, post_SH, 0 }, /* SH */
110: { pre_SS, post_SS, 0 }, /* SS */
111: { pre_TP, post_TP, 0 }, /* TP */
112: { pre_PP, NULL, 0 }, /* LP */
113: { pre_PP, NULL, 0 }, /* PP */
114: { pre_PP, NULL, 0 }, /* P */
115: { pre_IP, post_IP, 0 }, /* IP */
116: { pre_HP, post_HP, 0 }, /* HP */
117: { NULL, NULL, 0 }, /* SM */
118: { pre_B, NULL, 0 }, /* SB */
1.88 kristaps 119: { pre_alternate, NULL, 0 }, /* BI */
120: { pre_alternate, NULL, 0 }, /* IB */
121: { pre_alternate, NULL, 0 }, /* BR */
122: { pre_alternate, NULL, 0 }, /* RB */
1.56 kristaps 123: { NULL, NULL, 0 }, /* R */
124: { pre_B, NULL, 0 }, /* B */
125: { pre_I, NULL, 0 }, /* I */
1.88 kristaps 126: { pre_alternate, NULL, 0 }, /* IR */
127: { pre_alternate, NULL, 0 }, /* RI */
1.99 schwarze 128: { pre_ign, NULL, MAN_NOTEXT }, /* na */
1.56 kristaps 129: { pre_sp, NULL, MAN_NOTEXT }, /* sp */
1.84 kristaps 130: { pre_literal, NULL, 0 }, /* nf */
131: { pre_literal, NULL, 0 }, /* fi */
1.56 kristaps 132: { NULL, NULL, 0 }, /* RE */
133: { pre_RS, post_RS, 0 }, /* RS */
134: { pre_ign, NULL, 0 }, /* DT */
135: { pre_ign, NULL, 0 }, /* UC */
136: { pre_ign, NULL, 0 }, /* PD */
1.70 joerg 137: { pre_ign, NULL, 0 }, /* AT */
1.83 kristaps 138: { pre_in, NULL, MAN_NOTEXT }, /* in */
1.89 kristaps 139: { pre_ft, NULL, MAN_NOTEXT }, /* ft */
1.1 kristaps 140: };
141:
142:
143:
1.31 kristaps 144: void
1.36 kristaps 145: terminal_man(void *arg, const struct man *man)
1.1 kristaps 146: {
1.36 kristaps 147: struct termp *p;
148: const struct man_node *n;
149: const struct man_meta *m;
150: struct mtermp mt;
151:
152: p = (struct termp *)arg;
153:
1.58 kristaps 154: p->overstep = 0;
1.65 joerg 155: p->maxrmargin = p->defrmargin;
1.77 kristaps 156: p->tabwidth = term_len(p, 5);
1.73 kristaps 157:
1.36 kristaps 158: if (NULL == p->symtab)
1.109 kristaps 159: p->symtab = mchars_alloc();
1.36 kristaps 160:
161: n = man_node(man);
162: m = man_meta(man);
1.1 kristaps 163:
1.75 schwarze 164: term_begin(p, print_man_head, print_man_foot, m);
1.1 kristaps 165: p->flags |= TERMP_NOSPACE;
1.19 kristaps 166:
1.24 kristaps 167: mt.fl = 0;
1.77 kristaps 168: mt.lmargin = term_len(p, INDENT);
169: mt.offset = term_len(p, INDENT);
1.24 kristaps 170:
1.36 kristaps 171: if (n->child)
1.52 kristaps 172: print_man_nodelist(p, &mt, n->child, m);
1.73 kristaps 173:
174: term_end(p);
1.1 kristaps 175: }
176:
177:
1.77 kristaps 178: static size_t
179: a2height(const struct termp *p, const char *cp)
1.18 kristaps 180: {
1.40 kristaps 181: struct roffsu su;
1.18 kristaps 182:
1.77 kristaps 183: if ( ! a2roffsu(cp, &su, SCALE_VS))
1.112 ! kristaps 184: SCALE_VS_INIT(&su, atoi(cp));
1.18 kristaps 185:
1.77 kristaps 186: return(term_vspan(p, &su));
1.18 kristaps 187: }
188:
189:
190: static int
1.77 kristaps 191: a2width(const struct termp *p, const char *cp)
1.38 kristaps 192: {
1.40 kristaps 193: struct roffsu su;
1.38 kristaps 194:
1.77 kristaps 195: if ( ! a2roffsu(cp, &su, SCALE_BU))
1.41 kristaps 196: return(-1);
1.40 kristaps 197:
1.77 kristaps 198: return((int)term_hspan(p, &su));
1.38 kristaps 199: }
200:
1.111 kristaps 201: /*
202: * Printing leading vertical space before a block.
203: * This is used for the paragraph macros.
204: * The rules are pretty simple, since there's very little nesting going
205: * on here. Basically, if we're the first within another block (SS/SH),
206: * then don't emit vertical space. If we are (RS), then do. If not the
207: * first, print it.
208: */
1.39 kristaps 209: static void
210: print_bvspace(struct termp *p, const struct man_node *n)
1.18 kristaps 211: {
1.111 kristaps 212:
1.39 kristaps 213: term_newln(p);
1.101 schwarze 214:
1.111 kristaps 215: if (n->body && n->body->child)
216: if (MAN_TBL == n->body->child->type)
217: return;
218:
219: if (MAN_ROOT == n->parent->type || MAN_RS != n->parent->tok)
220: if (NULL == n->prev)
221: return;
1.18 kristaps 222:
1.39 kristaps 223: term_vspace(p);
1.18 kristaps 224: }
225:
1.3 kristaps 226: /* ARGSUSED */
1.1 kristaps 227: static int
1.29 kristaps 228: pre_ign(DECL_ARGS)
229: {
230:
231: return(0);
232: }
233:
234:
235: /* ARGSUSED */
236: static int
1.1 kristaps 237: pre_I(DECL_ARGS)
238: {
239:
1.52 kristaps 240: term_fontrepl(p, TERMFONT_UNDER);
1.19 kristaps 241: return(1);
242: }
243:
244:
245: /* ARGSUSED */
1.3 kristaps 246: static int
1.84 kristaps 247: pre_literal(DECL_ARGS)
1.19 kristaps 248: {
249:
1.81 kristaps 250: term_newln(p);
1.88 kristaps 251:
252: if (MAN_nf == n->tok)
1.84 kristaps 253: mt->fl |= MANT_LITERAL;
1.88 kristaps 254: else
1.84 kristaps 255: mt->fl &= ~MANT_LITERAL;
256:
1.99 schwarze 257: return(0);
1.19 kristaps 258: }
259:
260: /* ARGSUSED */
261: static int
1.88 kristaps 262: pre_alternate(DECL_ARGS)
1.3 kristaps 263: {
1.88 kristaps 264: enum termfont font[2];
265: const struct man_node *nn;
266: int savelit, i;
1.3 kristaps 267:
1.88 kristaps 268: switch (n->tok) {
269: case (MAN_RB):
270: font[0] = TERMFONT_NONE;
271: font[1] = TERMFONT_BOLD;
272: break;
273: case (MAN_RI):
274: font[0] = TERMFONT_NONE;
275: font[1] = TERMFONT_UNDER;
276: break;
277: case (MAN_BR):
278: font[0] = TERMFONT_BOLD;
279: font[1] = TERMFONT_NONE;
280: break;
281: case (MAN_BI):
282: font[0] = TERMFONT_BOLD;
283: font[1] = TERMFONT_UNDER;
284: break;
285: case (MAN_IR):
286: font[0] = TERMFONT_UNDER;
287: font[1] = TERMFONT_NONE;
288: break;
289: case (MAN_IB):
290: font[0] = TERMFONT_UNDER;
291: font[1] = TERMFONT_BOLD;
292: break;
293: default:
294: abort();
295: }
1.35 kristaps 296:
1.88 kristaps 297: savelit = MANT_LITERAL & mt->fl;
298: mt->fl &= ~MANT_LITERAL;
1.35 kristaps 299:
1.88 kristaps 300: for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {
301: term_fontrepl(p, font[i]);
302: if (savelit && NULL == nn->next)
303: mt->fl |= MANT_LITERAL;
1.45 kristaps 304: print_man_node(p, mt, nn, m);
1.88 kristaps 305: if (nn->next)
1.4 kristaps 306: p->flags |= TERMP_NOSPACE;
1.3 kristaps 307: }
308:
309: return(0);
310: }
311:
312: /* ARGSUSED */
1.1 kristaps 313: static int
314: pre_B(DECL_ARGS)
315: {
316:
1.52 kristaps 317: term_fontrepl(p, TERMFONT_BOLD);
1.1 kristaps 318: return(1);
1.89 kristaps 319: }
320:
321: /* ARGSUSED */
322: static int
323: pre_ft(DECL_ARGS)
324: {
325: const char *cp;
326:
327: if (NULL == n->child) {
328: term_fontlast(p);
329: return(0);
330: }
331:
332: cp = n->child->string;
333: switch (*cp) {
334: case ('4'):
335: /* FALLTHROUGH */
336: case ('3'):
337: /* FALLTHROUGH */
338: case ('B'):
339: term_fontrepl(p, TERMFONT_BOLD);
340: break;
341: case ('2'):
342: /* FALLTHROUGH */
343: case ('I'):
344: term_fontrepl(p, TERMFONT_UNDER);
345: break;
346: case ('P'):
347: term_fontlast(p);
348: break;
349: case ('1'):
350: /* FALLTHROUGH */
351: case ('C'):
352: /* FALLTHROUGH */
353: case ('R'):
354: term_fontrepl(p, TERMFONT_NONE);
355: break;
356: default:
357: break;
358: }
359: return(0);
1.83 kristaps 360: }
361:
362: /* ARGSUSED */
363: static int
364: pre_in(DECL_ARGS)
365: {
366: int len, less;
367: size_t v;
368: const char *cp;
369:
370: term_newln(p);
371:
372: if (NULL == n->child) {
373: p->offset = mt->offset;
374: return(0);
375: }
376:
377: cp = n->child->string;
378: less = 0;
379:
380: if ('-' == *cp)
381: less = -1;
382: else if ('+' == *cp)
383: less = 1;
384: else
385: cp--;
386:
387: if ((len = a2width(p, ++cp)) < 0)
388: return(0);
389:
390: v = (size_t)len;
391:
392: if (less < 0)
393: p->offset -= p->offset > v ? v : p->offset;
394: else if (less > 0)
395: p->offset += v;
396: else
397: p->offset = v;
1.95 kristaps 398:
399: /* Don't let this creep beyond the right margin. */
400:
401: if (p->offset > p->rmargin)
402: p->offset = p->rmargin;
1.83 kristaps 403:
404: return(0);
1.1 kristaps 405: }
406:
407:
1.3 kristaps 408: /* ARGSUSED */
1.1 kristaps 409: static int
1.19 kristaps 410: pre_sp(DECL_ARGS)
411: {
1.77 kristaps 412: size_t i, len;
1.112 ! kristaps 413:
! 414: if ((NULL == n->prev && n->parent)) {
! 415: if (MAN_SS == n->parent->tok)
! 416: return(0);
! 417: if (MAN_SH == n->parent->tok)
! 418: return(0);
! 419: }
1.19 kristaps 420:
1.82 kristaps 421: switch (n->tok) {
422: case (MAN_br):
423: len = 0;
424: break;
425: default:
426: len = n->child ? a2height(p, n->child->string) : 1;
427: break;
428: }
1.38 kristaps 429:
1.19 kristaps 430: if (0 == len)
431: term_newln(p);
1.82 kristaps 432: for (i = 0; i < len; i++)
1.19 kristaps 433: term_vspace(p);
434:
1.15 kristaps 435: return(0);
436: }
437:
438:
439: /* ARGSUSED */
440: static int
1.19 kristaps 441: pre_HP(DECL_ARGS)
442: {
1.24 kristaps 443: size_t len;
444: int ival;
445: const struct man_node *nn;
1.19 kristaps 446:
1.20 kristaps 447: switch (n->type) {
448: case (MAN_BLOCK):
1.39 kristaps 449: print_bvspace(p, n);
1.24 kristaps 450: return(1);
1.20 kristaps 451: case (MAN_BODY):
452: p->flags |= TERMP_NOBREAK;
453: p->flags |= TERMP_TWOSPACE;
454: break;
455: default:
456: return(0);
457: }
458:
1.26 kristaps 459: len = mt->lmargin;
1.24 kristaps 460: ival = -1;
461:
462: /* Calculate offset. */
463:
1.39 kristaps 464: if (NULL != (nn = n->parent->head->child))
1.77 kristaps 465: if ((ival = a2width(p, nn->string)) >= 0)
1.24 kristaps 466: len = (size_t)ival;
467:
468: if (0 == len)
1.77 kristaps 469: len = term_len(p, 1);
1.24 kristaps 470:
1.26 kristaps 471: p->offset = mt->offset;
472: p->rmargin = mt->offset + len;
1.24 kristaps 473:
474: if (ival >= 0)
1.26 kristaps 475: mt->lmargin = (size_t)ival;
1.24 kristaps 476:
1.19 kristaps 477: return(1);
478: }
479:
480:
481: /* ARGSUSED */
1.20 kristaps 482: static void
483: post_HP(DECL_ARGS)
484: {
485:
486: switch (n->type) {
1.24 kristaps 487: case (MAN_BLOCK):
488: term_flushln(p);
489: break;
1.20 kristaps 490: case (MAN_BODY):
491: term_flushln(p);
492: p->flags &= ~TERMP_NOBREAK;
493: p->flags &= ~TERMP_TWOSPACE;
1.26 kristaps 494: p->offset = mt->offset;
1.20 kristaps 495: p->rmargin = p->maxrmargin;
496: break;
497: default:
498: break;
499: }
500: }
501:
502:
503: /* ARGSUSED */
1.19 kristaps 504: static int
1.1 kristaps 505: pre_PP(DECL_ARGS)
506: {
507:
1.19 kristaps 508: switch (n->type) {
509: case (MAN_BLOCK):
1.77 kristaps 510: mt->lmargin = term_len(p, INDENT);
1.39 kristaps 511: print_bvspace(p, n);
1.19 kristaps 512: break;
513: default:
1.26 kristaps 514: p->offset = mt->offset;
1.19 kristaps 515: break;
516: }
517:
1.87 kristaps 518: return(MAN_HEAD != n->type);
1.1 kristaps 519: }
520:
521:
1.3 kristaps 522: /* ARGSUSED */
1.1 kristaps 523: static int
1.4 kristaps 524: pre_IP(DECL_ARGS)
525: {
1.22 kristaps 526: const struct man_node *nn;
527: size_t len;
1.94 schwarze 528: int savelit, ival;
1.18 kristaps 529:
1.22 kristaps 530: switch (n->type) {
531: case (MAN_BODY):
532: p->flags |= TERMP_NOLPAD;
533: p->flags |= TERMP_NOSPACE;
534: break;
535: case (MAN_HEAD):
536: p->flags |= TERMP_NOBREAK;
537: break;
1.23 kristaps 538: case (MAN_BLOCK):
1.39 kristaps 539: print_bvspace(p, n);
1.23 kristaps 540: /* FALLTHROUGH */
1.22 kristaps 541: default:
542: return(1);
543: }
1.18 kristaps 544:
1.26 kristaps 545: len = mt->lmargin;
1.22 kristaps 546: ival = -1;
1.4 kristaps 547:
1.94 schwarze 548: /* Calculate the offset from the optional second argument. */
1.22 kristaps 549: if (NULL != (nn = n->parent->head->child))
1.94 schwarze 550: if (NULL != (nn = nn->next))
1.77 kristaps 551: if ((ival = a2width(p, nn->string)) >= 0)
1.22 kristaps 552: len = (size_t)ival;
1.4 kristaps 553:
1.22 kristaps 554: switch (n->type) {
555: case (MAN_HEAD):
1.23 kristaps 556: /* Handle zero-width lengths. */
557: if (0 == len)
1.77 kristaps 558: len = term_len(p, 1);
1.23 kristaps 559:
1.26 kristaps 560: p->offset = mt->offset;
561: p->rmargin = mt->offset + len;
1.22 kristaps 562: if (ival < 0)
563: break;
1.18 kristaps 564:
1.24 kristaps 565: /* Set the saved left-margin. */
1.26 kristaps 566: mt->lmargin = (size_t)ival;
1.24 kristaps 567:
1.94 schwarze 568: savelit = MANT_LITERAL & mt->fl;
569: mt->fl &= ~MANT_LITERAL;
570:
571: if (n->child)
572: print_man_node(p, mt, n->child, m);
573:
574: if (savelit)
575: mt->fl |= MANT_LITERAL;
576:
1.22 kristaps 577: return(0);
1.23 kristaps 578: case (MAN_BODY):
1.26 kristaps 579: p->offset = mt->offset + len;
1.23 kristaps 580: p->rmargin = p->maxrmargin;
581: break;
1.22 kristaps 582: default:
583: break;
1.18 kristaps 584: }
585:
1.22 kristaps 586: return(1);
587: }
1.18 kristaps 588:
589:
1.22 kristaps 590: /* ARGSUSED */
591: static void
592: post_IP(DECL_ARGS)
593: {
1.4 kristaps 594:
1.22 kristaps 595: switch (n->type) {
596: case (MAN_HEAD):
597: term_flushln(p);
598: p->flags &= ~TERMP_NOBREAK;
599: p->rmargin = p->maxrmargin;
600: break;
601: case (MAN_BODY):
1.94 schwarze 602: term_newln(p);
1.22 kristaps 603: p->flags &= ~TERMP_NOLPAD;
604: break;
605: default:
606: break;
607: }
1.4 kristaps 608: }
609:
610:
611: /* ARGSUSED */
612: static int
1.1 kristaps 613: pre_TP(DECL_ARGS)
614: {
1.23 kristaps 615: const struct man_node *nn;
616: size_t len;
1.94 schwarze 617: int savelit, ival;
1.1 kristaps 618:
1.21 kristaps 619: switch (n->type) {
620: case (MAN_HEAD):
621: p->flags |= TERMP_NOBREAK;
622: break;
623: case (MAN_BODY):
624: p->flags |= TERMP_NOLPAD;
625: p->flags |= TERMP_NOSPACE;
1.23 kristaps 626: break;
627: case (MAN_BLOCK):
1.39 kristaps 628: print_bvspace(p, n);
1.23 kristaps 629: /* FALLTHROUGH */
630: default:
631: return(1);
632: }
633:
1.24 kristaps 634: len = (size_t)mt->lmargin;
1.23 kristaps 635: ival = -1;
636:
637: /* Calculate offset. */
638:
1.56 kristaps 639: if (NULL != (nn = n->parent->head->child)) {
640: while (nn && MAN_TEXT != nn->type)
641: nn = nn->next;
642: if (nn && nn->next)
1.77 kristaps 643: if ((ival = a2width(p, nn->string)) >= 0)
1.23 kristaps 644: len = (size_t)ival;
1.56 kristaps 645: }
1.23 kristaps 646:
647: switch (n->type) {
648: case (MAN_HEAD):
649: /* Handle zero-length properly. */
650: if (0 == len)
1.77 kristaps 651: len = term_len(p, 1);
1.23 kristaps 652:
1.26 kristaps 653: p->offset = mt->offset;
654: p->rmargin = mt->offset + len;
1.23 kristaps 655:
1.94 schwarze 656: savelit = MANT_LITERAL & mt->fl;
657: mt->fl &= ~MANT_LITERAL;
658:
1.23 kristaps 659: /* Don't print same-line elements. */
1.94 schwarze 660: for (nn = n->child; nn; nn = nn->next)
1.23 kristaps 661: if (nn->line > n->line)
1.45 kristaps 662: print_man_node(p, mt, nn, m);
1.24 kristaps 663:
1.94 schwarze 664: if (savelit)
665: mt->fl |= MANT_LITERAL;
666:
1.24 kristaps 667: if (ival >= 0)
1.26 kristaps 668: mt->lmargin = (size_t)ival;
1.24 kristaps 669:
1.23 kristaps 670: return(0);
671: case (MAN_BODY):
1.26 kristaps 672: p->offset = mt->offset + len;
1.23 kristaps 673: p->rmargin = p->maxrmargin;
1.21 kristaps 674: break;
675: default:
676: break;
677: }
1.16 kristaps 678:
1.21 kristaps 679: return(1);
680: }
1.1 kristaps 681:
682:
1.21 kristaps 683: /* ARGSUSED */
684: static void
685: post_TP(DECL_ARGS)
686: {
1.1 kristaps 687:
1.21 kristaps 688: switch (n->type) {
689: case (MAN_HEAD):
690: term_flushln(p);
691: p->flags &= ~TERMP_NOBREAK;
692: p->flags &= ~TERMP_TWOSPACE;
693: p->rmargin = p->maxrmargin;
694: break;
695: case (MAN_BODY):
1.94 schwarze 696: term_newln(p);
1.21 kristaps 697: p->flags &= ~TERMP_NOLPAD;
698: break;
699: default:
700: break;
701: }
1.1 kristaps 702: }
703:
704:
1.3 kristaps 705: /* ARGSUSED */
1.1 kristaps 706: static int
707: pre_SS(DECL_ARGS)
708: {
709:
1.19 kristaps 710: switch (n->type) {
711: case (MAN_BLOCK):
1.77 kristaps 712: mt->lmargin = term_len(p, INDENT);
713: mt->offset = term_len(p, INDENT);
1.24 kristaps 714: /* If following a prior empty `SS', no vspace. */
715: if (n->prev && MAN_SS == n->prev->tok)
716: if (NULL == n->prev->body->child)
717: break;
718: if (NULL == n->prev)
719: break;
720: term_vspace(p);
1.19 kristaps 721: break;
722: case (MAN_HEAD):
1.52 kristaps 723: term_fontrepl(p, TERMFONT_BOLD);
1.77 kristaps 724: p->offset = term_len(p, HALFINDENT);
1.19 kristaps 725: break;
1.24 kristaps 726: case (MAN_BODY):
1.26 kristaps 727: p->offset = mt->offset;
1.24 kristaps 728: break;
1.19 kristaps 729: default:
730: break;
731: }
732:
1.1 kristaps 733: return(1);
734: }
735:
736:
1.3 kristaps 737: /* ARGSUSED */
1.1 kristaps 738: static void
739: post_SS(DECL_ARGS)
740: {
741:
1.19 kristaps 742: switch (n->type) {
743: case (MAN_HEAD):
744: term_newln(p);
745: break;
1.24 kristaps 746: case (MAN_BODY):
747: term_newln(p);
748: break;
1.19 kristaps 749: default:
750: break;
751: }
1.1 kristaps 752: }
753:
754:
1.3 kristaps 755: /* ARGSUSED */
1.1 kristaps 756: static int
757: pre_SH(DECL_ARGS)
758: {
1.22 kristaps 759:
1.19 kristaps 760: switch (n->type) {
761: case (MAN_BLOCK):
1.77 kristaps 762: mt->lmargin = term_len(p, INDENT);
763: mt->offset = term_len(p, INDENT);
1.22 kristaps 764: /* If following a prior empty `SH', no vspace. */
1.19 kristaps 765: if (n->prev && MAN_SH == n->prev->tok)
766: if (NULL == n->prev->body->child)
767: break;
1.61 kristaps 768: /* If the first macro, no vspae. */
769: if (NULL == n->prev)
770: break;
1.19 kristaps 771: term_vspace(p);
772: break;
773: case (MAN_HEAD):
1.52 kristaps 774: term_fontrepl(p, TERMFONT_BOLD);
1.19 kristaps 775: p->offset = 0;
776: break;
777: case (MAN_BODY):
1.26 kristaps 778: p->offset = mt->offset;
1.19 kristaps 779: break;
780: default:
781: break;
782: }
1.1 kristaps 783:
784: return(1);
785: }
786:
787:
1.3 kristaps 788: /* ARGSUSED */
1.1 kristaps 789: static void
790: post_SH(DECL_ARGS)
791: {
792:
1.19 kristaps 793: switch (n->type) {
794: case (MAN_HEAD):
795: term_newln(p);
796: break;
797: case (MAN_BODY):
798: term_newln(p);
799: break;
800: default:
801: break;
802: }
1.1 kristaps 803: }
804:
1.26 kristaps 805: /* ARGSUSED */
806: static int
807: pre_RS(DECL_ARGS)
808: {
1.110 kristaps 809: int ival;
810: size_t sz;
1.26 kristaps 811:
812: switch (n->type) {
813: case (MAN_BLOCK):
814: term_newln(p);
815: return(1);
816: case (MAN_HEAD):
817: return(0);
818: default:
819: break;
820: }
821:
1.110 kristaps 822: sz = term_len(p, INDENT);
1.26 kristaps 823:
1.110 kristaps 824: if (NULL != (n = n->parent->head->child))
825: if ((ival = a2width(p, n->string)) >= 0)
826: sz = (size_t)ival;
1.26 kristaps 827:
1.110 kristaps 828: mt->offset += sz;
1.26 kristaps 829: p->offset = mt->offset;
830:
831: return(1);
832: }
833:
834: /* ARGSUSED */
835: static void
836: post_RS(DECL_ARGS)
837: {
1.110 kristaps 838: int ival;
839: size_t sz;
1.26 kristaps 840:
841: switch (n->type) {
842: case (MAN_BLOCK):
1.110 kristaps 843: return;
1.59 kristaps 844: case (MAN_HEAD):
1.110 kristaps 845: return;
1.26 kristaps 846: default:
847: term_newln(p);
848: break;
849: }
1.110 kristaps 850:
851: sz = term_len(p, INDENT);
852:
853: if (NULL != (n = n->parent->head->child))
854: if ((ival = a2width(p, n->string)) >= 0)
855: sz = (size_t)ival;
856:
857: mt->offset = mt->offset < sz ? 0 : mt->offset - sz;
858: p->offset = mt->offset;
1.26 kristaps 859: }
860:
1.1 kristaps 861: static void
1.45 kristaps 862: print_man_node(DECL_ARGS)
1.1 kristaps 863: {
1.65 joerg 864: size_t rm, rmax;
1.54 kristaps 865: int c;
1.1 kristaps 866:
867: switch (n->type) {
868: case(MAN_TEXT):
1.97 kristaps 869: /*
870: * If we have a blank line, output a vertical space.
871: * If we have a space as the first character, break
872: * before printing the line's data.
873: */
1.96 kristaps 874: if ('\0' == *n->string) {
1.4 kristaps 875: term_vspace(p);
1.98 schwarze 876: return;
1.97 kristaps 877: } else if (' ' == *n->string && MAN_LINE & n->flags)
1.96 kristaps 878: term_newln(p);
1.54 kristaps 879:
1.4 kristaps 880: term_word(p, n->string);
1.52 kristaps 881:
1.97 kristaps 882: /*
883: * If we're in a literal context, make sure that words
884: * togehter on the same line stay together. This is a
885: * POST-printing call, so we check the NEXT word. Since
886: * -man doesn't have nested macros, we don't need to be
887: * more specific than this.
888: */
889: if (MANT_LITERAL & mt->fl &&
890: (NULL == n->next ||
891: n->next->line > n->line)) {
1.65 joerg 892: rm = p->rmargin;
893: rmax = p->maxrmargin;
1.60 kristaps 894: p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.19 kristaps 895: p->flags |= TERMP_NOSPACE;
896: term_flushln(p);
1.94 schwarze 897: p->flags &= ~TERMP_NOLPAD;
1.65 joerg 898: p->rmargin = rm;
899: p->maxrmargin = rmax;
1.19 kristaps 900: }
1.100 schwarze 901:
902: if (MAN_EOS & n->flags)
903: p->flags |= TERMP_SENTENCE;
1.102 kristaps 904: return;
905: case (MAN_EQN):
1.103 kristaps 906: term_word(p, n->eqn->data);
1.97 kristaps 907: return;
1.91 kristaps 908: case (MAN_TBL):
1.97 kristaps 909: /*
910: * Tables are preceded by a newline. Then process a
911: * table line, which will cause line termination,
912: */
1.93 kristaps 913: if (TBL_SPAN_FIRST & n->span->flags)
914: term_newln(p);
1.92 kristaps 915: term_tbl(p, n->span);
1.97 kristaps 916: return;
1.1 kristaps 917: default:
918: break;
919: }
920:
1.97 kristaps 921: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
922: term_fontrepl(p, TERMFONT_NONE);
923:
924: c = 1;
925: if (termacts[n->tok].pre)
926: c = (*termacts[n->tok].pre)(p, mt, n, m);
927:
1.1 kristaps 928: if (c && n->child)
1.52 kristaps 929: print_man_nodelist(p, mt, n->child, m);
1.1 kristaps 930:
1.97 kristaps 931: if (termacts[n->tok].post)
932: (*termacts[n->tok].post)(p, mt, n, m);
933: if ( ! (MAN_NOTEXT & termacts[n->tok].flags))
934: term_fontrepl(p, TERMFONT_NONE);
1.63 kristaps 935:
936: if (MAN_EOS & n->flags)
937: p->flags |= TERMP_SENTENCE;
1.1 kristaps 938: }
939:
940:
941: static void
1.52 kristaps 942: print_man_nodelist(DECL_ARGS)
1.1 kristaps 943: {
1.19 kristaps 944:
1.45 kristaps 945: print_man_node(p, mt, n, m);
1.1 kristaps 946: if ( ! n->next)
947: return;
1.52 kristaps 948: print_man_nodelist(p, mt, n->next, m);
1.1 kristaps 949: }
950:
951:
1.31 kristaps 952: static void
1.73 kristaps 953: print_man_foot(struct termp *p, const void *arg)
1.1 kristaps 954: {
1.73 kristaps 955: const struct man_meta *meta;
956:
957: meta = (const struct man_meta *)arg;
1.1 kristaps 958:
1.52 kristaps 959: term_fontrepl(p, TERMFONT_NONE);
1.50 kristaps 960:
1.69 joerg 961: term_vspace(p);
962: term_vspace(p);
1.1 kristaps 963: term_vspace(p);
964:
965: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
1.104 schwarze 966: p->rmargin = p->maxrmargin - term_strlen(p, meta->date);
1.1 kristaps 967: p->offset = 0;
1.85 kristaps 968:
969: /* term_strlen() can return zero. */
970: if (p->rmargin == p->maxrmargin)
971: p->rmargin--;
1.1 kristaps 972:
973: if (meta->source)
974: term_word(p, meta->source);
975: if (meta->source)
976: term_word(p, "");
977: term_flushln(p);
978:
979: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
980: p->offset = p->rmargin;
981: p->rmargin = p->maxrmargin;
982: p->flags &= ~TERMP_NOBREAK;
983:
1.104 schwarze 984: term_word(p, meta->date);
1.1 kristaps 985: term_flushln(p);
986: }
987:
988:
1.31 kristaps 989: static void
1.73 kristaps 990: print_man_head(struct termp *p, const void *arg)
1.1 kristaps 991: {
1.46 kristaps 992: char buf[BUFSIZ], title[BUFSIZ];
1.57 kristaps 993: size_t buflen, titlen;
1.73 kristaps 994: const struct man_meta *m;
995:
996: m = (const struct man_meta *)arg;
1.1 kristaps 997:
1.62 kristaps 998: /*
999: * Note that old groff would spit out some spaces before the
1000: * header. We discontinue this strange behaviour, but at one
1001: * point we did so here.
1002: */
1003:
1.1 kristaps 1004: p->rmargin = p->maxrmargin;
1.58 kristaps 1005:
1.1 kristaps 1006: p->offset = 0;
1.46 kristaps 1007: buf[0] = title[0] = '\0';
1.1 kristaps 1008:
1.46 kristaps 1009: if (m->vol)
1010: strlcpy(buf, m->vol, BUFSIZ);
1.77 kristaps 1011: buflen = term_strlen(p, buf);
1.1 kristaps 1012:
1.64 kristaps 1013: snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.77 kristaps 1014: titlen = term_strlen(p, title);
1.1 kristaps 1015:
1016: p->offset = 0;
1.57 kristaps 1017: p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?
1.77 kristaps 1018: (p->maxrmargin -
1019: term_strlen(p, buf) + term_len(p, 1)) / 2 :
1.57 kristaps 1020: p->maxrmargin - buflen;
1.1 kristaps 1021: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1022:
1023: term_word(p, title);
1024: term_flushln(p);
1025:
1026: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1027: p->offset = p->rmargin;
1.57 kristaps 1028: p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?
1029: p->maxrmargin - titlen : p->maxrmargin;
1.1 kristaps 1030:
1031: term_word(p, buf);
1032: term_flushln(p);
1033:
1034: p->flags &= ~TERMP_NOBREAK;
1.57 kristaps 1035: if (p->rmargin + titlen <= p->maxrmargin) {
1036: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1037: p->offset = p->rmargin;
1038: p->rmargin = p->maxrmargin;
1039: term_word(p, title);
1040: term_flushln(p);
1041: }
1.1 kristaps 1042:
1043: p->rmargin = p->maxrmargin;
1044: p->offset = 0;
1045: p->flags &= ~TERMP_NOSPACE;
1.61 kristaps 1046:
1.62 kristaps 1047: /*
1048: * Groff likes to have some leading spaces before content. Well
1049: * that's fine by me.
1050: */
1051:
1.61 kristaps 1052: term_vspace(p);
1053: term_vspace(p);
1054: term_vspace(p);
1.1 kristaps 1055: }
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